/*
 * Copyright (C) 2014 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package cn.nexd.app.okhttp;


import cn.nexd.app.okhttp.internal.Util;

/**
 * An RFC 2617 challenge.
 */
public final class Challenge {
    private final String scheme;
    private final String realm;

    public Challenge(String scheme, String realm) {
        this.scheme = scheme;
        this.realm = realm;
    }

    /**
     * Returns the authentication scheme, like {@code Basic}.
     */
    public String scheme() {
        return scheme;
    }

    /**
     * Returns the protection space.
     */
    public String realm() {
        return realm;
    }

    @Override
    public boolean equals(Object o) {
        return o instanceof Challenge
                && Util.equal(scheme, ((Challenge) o).scheme)
                && Util.equal(realm, ((Challenge) o).realm);
    }

    @Override
    public int hashCode() {
        int result = 29;
        result = 31 * result + (realm != null ? realm.hashCode() : 0);
        result = 31 * result + (scheme != null ? scheme.hashCode() : 0);
        return result;
    }

    @Override
    public String toString() {
        return scheme + " realm=\"" + realm + "\"";
    }
}
